Hi Anarcho,
That's interesting; look forward to others' replies.
Just so happens I saw a similar situation, with a big dining table,
just four days ago (but the 'fixes/tesuji' were prominently presented as part of the design or feature

)
I too suspect no noticeable audio problems (unless you're some kind of audio professional!);
usually, I also spend very little time staring at the bottom of a board
(except the first few minutes when I introduce Go to raw pedestrians

).